Storm window casing



3 Sheets-Sheet 1 `lune 7, 1960 J. A. WAHLFELD STORM WINDOW cAsING FiledFeb. 2, 1959 FIG! wlllll ....l a

INVENTOR: JAMES A. WAHLFELD June 7, 1960 J. A, WAHLFELD v2,939,188

STORM WINDOW cAsING Filed Feb. 2, 1959 5 Sheets-Sheet 2 INVENTOR.- JAMESA. WAHLFELD June 7, 1960 J. A. WAHLFELD 2,939,188

STORM WINDOW cAsING Filed Feb. 2, 1959 3 Sheets-Sheet 3 FIGB 88JNVENTOR; i JAMES A. WAHLFELD STORM WINDOW CASNG James A. Wahlfeld, 216W. Stratford Drive, Peoria, lll.

Filed Feb. 2, 1959, Ser. No. l790,719

7 Claims. (Cl. Ztl- 55) This invention relates to an improved device foruse in building construction, more particularly it relates to animproved Window unit with aluminum exterior n casing containing animproved combination storm and screen as an integral part of a primewindow unit with wood frame and exterior sash members.

Storm windows are mounted exterior of the conventional window in orderto make the windows more weather tight and decrease the convective heatloss through the window pane due to the large winter time temperaturedifferential between the two sides of the pane. The effcctiveness of thestorm Window is determined in a large measure by the tightness of theseal about the edges thereof. The'insulation effect of the storm windowdepends tainly upon the air in the space between the storm Window andconventional window being sealed and still.

Another disadvantage in metal window-case construction is that metal isa good conductor of heat and transports heat through the metal windowcasings outward where it is lost. Hence, a metal storm window casingused in conjunction with a conventional metal window casing may, ifprecautions are not taken, transport enough heat out through the metalmembers supporting the panes at a rate that minimizes the beneficialinsulation effects ofthe storm window. lt is necessary to insulate themetal storm window casing from the conventional window metal casing.

Still another weatherproong problem commonly encountered occurs when theexterior covering, whether Vit be brick or sidingypulls away from theexterior win- ,dow casing. VIn severe climates thermal expansion andcontraction of construction materials is sutcient to create openingsabout the window frames. Metal ashing posi- .tioned under the exteriorVcovering and fastened to the window jambs and sheathing is a desirablething to combat infiltration of elements of weather and help upon theinsulation problem `about the window casing. However, heretofore the usevof metal sheating about window frames generally leaves an unsightlyprotrusion of the flashing material. Although it is possible to coverthe edges of the flashing which shows around the exterior of a Windowframe with moulding trim such is not entirely satisfactory.

The present invention combines the functions of flashing, storm windowcasing, and functional trim about the window in a way best adapted toweatherproof the region about the window and insulate the storm windowcasing from the other interior metal portions of the conventional windowstructure.

Accordingly, one object of my invention is to provide a combined stormwindow casing and window frame ashing.

.Another object is to provide a storm window casing readily adapted tobe mounted on window frames ofdifferent' designs and having rather widetolerance varia; tion in window frame dimensions and jamb dimensions.,Another object of my invention is to provide a cornbined adjustablemetal stormjvindow casingvandmetal States arent -flashing which aords acomplete metal seal against the rice climate, which .preferably is anintegral part of the original equipment and adjusts to the climaticallyinduced thermal expansion and contraction of the building and the metalcasing parts.

Still another advantage of my invention is the feature that access to orremoval of the storm window casings where the sash and screen of thestorm window are suspended is facilitated Without defacing the exteriorof the building.

These and other objects and advantages of my invention will be apparentfrom the following drawings, specication and claims.

My invention comprises briey, an improved storm window casing and windowframe flashing adapted for mounting to window jambs at the sides and topthereof and comprises a sash guide having an elongated ange adapted toextend out and around the inside corner and over a portion of theexterior surface of the window jamb; a flashing strip mounted on thewindow jambs and comprising a at portion or web bounding the windowframe and having a right angle flange at its outer edge extending over aportion of the outer surface of the jamb and having therein a groove,and preferably a second Aflange at its inner edge engaging a wallportion of the building bordering the window frame; and a channel striphaving two -free edges, one free edge being received in the groove andthe second edge resting against the face of the elongated casing flangewhereby a weather seal is vcreated extending from the flashing about theexterior of the jamb to the metal sash guides which accommodates jambsof varying thicknesses.

My invention is further illustrated in the following drawings wherein:

Fig. l is a fragmentary cross section view of my window unit showing thestorm window casing and ashing mounted to the upper portion of thewindow frame or head jamb in a typical frame construction;

Fig. 2 is a fragmentary cross section View of my invention adapted tobrick veneer construction showing the lower portion of the window frame;

Fig. 3 is a cross section view of a typical embodiment 'of my metalstorm window casing and metal window flashing such as is illustrated inboth Figs. l and 2; and

Fig. 4 is a perspective view of a fragmentary section of the metalcomponent parts of my invention such as is illustrated in Fig. 3.

Referring now to the drawings the head jamb 16 of a conventional windowframe is shown in a cross section view in Fig. l. The framing members 12are shown supporting exterior sheathing 13, and interior Wall coveringv14 and trim moulding 16. The exterior siding in the embodiment of Fig.l is lap-board shown at 1S. The conventional Window sash 2t) and theglass pane 22 is Vshown in closed position against the underside ofthehead jam 19. The foregoing is descriptive of conventional construction.A preferred embodiment of my invention is shown mounted to the head jamb10 in Fig. l. A combinationl storm window and screen casing 24, ismounted to the head jamb 10. In addition to the recesses adapted toguide and seal with the storm window and screen sash described in detailbelow, the casing 24 is provided with an elongated ange 26 which extendsparallel with and partially covers the exterior surface 2S of the headjamb 10. A screen 30 is mounted within a frame or screen sash -32 insupported relationship. Similarly, a glass pane 34 is mounted within aframe or sash 36 as supported by and seals disposed within the contoursof the casing 24. Y

Metal flashing 38 forms a weatherproof seal with the Window frame, thatis the upper surface of the jamb 10. The ashing 38 is comprised of a webp ortion 40 and tworight angle anges 42 and 44, which extend in oppo- 3.site directions, one from opposite edges of the web (Figs. 3 and 4). Therst flange 42, reduced in width for special installations, is preferablyprovided and is positioned to under lie the interior-surfaces of thelapfbo'ards 1S and exterior of the sheathing 13; the web 40 .is posi:tioned against the outer surface 1 5'A as distinct from the exteriorsurface 28 of the head jamb 10; and the second flange 44 is positionedon the exterior surface of ,the jamb. That is, the flashing is mountedto the head jamb 14) and to the sheathingl 13 behind the outer siding18, and extends over the exterior face of the jamb 10. The flange 44 isprovided with a groove 46 which runs para, salsa allel with the windowjamb across the top and down both lsides thereof.

A channel strip 48 having two parallel legs or free edges S0 and 52 ismounted to cover the jamb between the flashing yflange 44 and theelongated casing flange 26. vThe free channel edge 50 is inserted intoand seals tightly within the groove 46; the free channel edge 52 reststightly against the exterior surface of the flange 26 and forms aweather seal but is free Ito slide across the ange surface in adjustmentto jamb thickness tolerance variations and to thermal expansion andcontraction of the metal casing and slight shifting of structural partsof the building.

Figs. 3 and 4 illustrate the shapes and relationships of the variousparts of the embodiment of my invention,

shown in Fig. 1 in greater detail as related to the side A jamb of thewindow. Both Figs. 3 and 4 are sectional views taken on a plane cutthrough the side of the window frame and into the Wall beyond the frameproper. In Fig. 3 the details of the recesses and contours ofthe stormwindow casing 24 are clearly illustrated. 'The upper storm window pane34 is mounted within a frame or sash 36 which is made from extrudedmetal. The lower storm window pane 54 is mounted within a similar frameor sash 56. Both the storm window sash 36 nal side of the window framecomprised of the jambs y on top and sides. The side jamb 76 andsheathing 78 are Shown in Fig. 3, however the reference numerals for thevarious contours of my storm window casing are identical for top andside sections. The casing 24 is fastened to the inner side of the windowframe by means of nails 80 and 82 driven into the jambs'll) and 76. Thecontours of the casing 24 are recessed, successively from the firstguide surface 58 to the screen sash guide surface 72 and then to asupporting web 84 and flange 86.

The metal sash guide 88 for the conventional window is shown in Fig. 3.It is impontant to note that a free space 90 is provided between thecasing 4iiange 86 and the sash guide 88. The space 90 contributes toinsulating the storm window-casing 24 from the interior of the windowframe.

The channel strip 48 is secured in place by nails 92. A further featurewhich contributes tol a tight all-metal seal about the exterior of thejambs is the raised tapered chanical or thermal stresses is outwardlytoward the sides of the window frame.

Fig. 2 illustrates the embodiment of my invention TheV shown in Figs. 1,3 and 4 at the lower section of the lwindow frame in a building of brickveneer construction'. A window sill 91 forms the lower part of thewindow frame. The sill is covered with an extruded metal sill covering93; a metal channel 96 ts over the sill 93 and completes the lowerportion of the casing. The storm window sash 56 seals against a recessedcontour 98. The brick covering ts within the angle of the flashing 38 asis illustrated.

.The foregoing specification and description of specific embodiments areonly illustrative of my invention; the scope of which is set forth inthe following claims.

What is claimed is:

1. An improved storm window casing and yflashing adapted for mounting towindow jambs comprising a sash guide having facing parallel surfaces forguiding storm window sash in sliding movements between them and anelongated ange adapted to extend over the exterior surface of the jamb,a flashing Vstrip comprising a web engaging the jamb and having a rightangle ange member engaging said exterior surface of the jamb spaced fromsaid elongated ange and having a groove, and a channel strip having twofree edges, one edge being received in the groove the other edge beingjuxtaposed against the exterior `flange thereby formingY a metal weathersealed structure from the flashing about the jamb to the Astorm sash. 7.

2. The combination called lfor in claim 1 in which said sash guide has ajamb engaging flange supporting the inner edge of the window casinglaterally in the jamb at a depth determined by said elongated ange andin spaced relationship to window sash guides mounted within said windowjambs, said channel strip holding said sash guide in said spacedrelationship upon said jambs.

3. An improved storm window casing and ashing adapted for mounting towindow jambs of low heat conductive material comprising a sash guidehaving facing parallel surfaces for guiding storm window sash in slidingmovements between them and an elongated metal flangeadapted to extendover and rest against the exterior surface of the jamb, a hashing stripcomprising a webrportion resting against a surface of the jamb andhaving a` right angle ange member engaging said exte rior surface of thejamb spaced from said elongated flange and-having an outwardly openinggroove, a channel strip having two free edges one of which is receivedin the groove and the other edgel being'juxtaposed against the exterioriiange, and means interconnecting said'chan- Y nelpstrip and said jambfor holding said flange member and` said elongated flange in place onsaid jamb thereby forming a metal weatherrsealed structure from theilashing about the jamb to the storm sash. o

4. An improved metal storm window casing and ashing adapted for mountingto Window jambs and adapted for use with metal window sash guidescomprising a storm window sash guide mounted tothe side of the jam-b andin spaced relationship to the window sash guides having in additionparallelsurfaces for guiding storm window sash in sliding movements andan elongated flange adapted to extend over the exterior surface of thejamb, a ashing strip comprised of a web and two right angle flanges oneat either edge of the -web extended in opposite directions, one of saidanges being provided with a groove and a channel strip having two -freeparallel edges, one of said edges being inserted into the groove, theAsecondl of said edges being `juxtaposed against the elongated flangethereby forming a weather tight seal from the ashing about thev jamb tothe storm window sash, kbut not connected by heat conducting metal tothe interior 'of the window guidesgby reason of the spaced mounting of.the storm window sash guide with respect to the window sash guides.

5. An improved exterior metal storm window casing and flashing formounting ontoawindow jamb having. an exterior side comprising ininterlocked and juxtaposed positions a ashing strip having a web and tworight angle flanges extending in opposite directions one from either endof the web, a groove being provided in one flange, a guide track sethaving recessed contours adapted to slidably receive the storm sash, anexterior elongated ange, the grooved ange of the flashing and the saidelongated flange being mounted to the exterior side of the jamb, and achannel strip having two legs, the irst leg thereof itted into the saidgroove, the second leg juxtaposed against the said elongated exteriorange, whereby an all metal sealed storm window casing adapted formounting to a wooden window casing is provided.

6. An improved exterior metal storm window casing and flashing formounting onto a window jamb having an exterior side comprising ininterlocked and juxtaposed positions a flashing strip having a web andtwo right angle flanges extending in opposite direction one from eitherend of the Web a groove being provided in one said ange, a channel striphaving two free edges, one edge of which is inserted into the groove,and a guide track set adapted to slidably receive storm window sash andhaving an exterior elongated ange, the second edge of the channeljuxtaposed against the said elongated ange forming a weather tight sealbetween the ashing and the storm sash.

7. An improved exterior storm window and screen casing comprising ametal guide track set adapted for mounting to Wooden window side andhead jambs, the tracks adapted to slidably receive storm window andscreen sash, the guide track being provided with an exterior ange whichextends over a portion of the outer surface of the jamb, a flashingstrip provided with two right angle anges one of which is grooved and isdisposed about the exterior of the jamb opposite the said casing ange, achannel strip having two legs, one leg of which is adapted to t Withinthe said groove and the other leg of which is juxtaposed on the casingange, whereby a continuous metal storm window casing is providedextending from the dashing about the exterior of the jamb to the guidetracks.

References Cited in the ie of this patent UNITED STATES PATENTS1,245,018 Peribonis Oct. 30, 1917

